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Exhaust Manifold Options

Well I gotta chime in now on options as I am at the end of mine.
I had one stock manifold replaced while under warranty. Out of warranty the drivers side cracked in the same place as everyone else's.
So I did all the research and went with the AFE purchased from American Truck since I'm in CA.
Only lasted about 7k and welds started cracking.
While A.T. was Useless after 30 days AFE sent out replacements right away and this is where my Nightmare has begun!
They told me that they did a redesign to "IMPROVE" them so I was excited to recieve the New and Improved ones.
Immediately I saw how warped and cupped the new base plates were but didn't have too many options so I decided to Try and see if the would torque out since a pair of camps on a bench seemed to work.
Well after all the work and Finally getting those hard to reach bolts in...
I notice they left the Air Port Flange off! See pics.

I put the old one one cause I can't go without a vehicle and contacted them.

Their Response was
"I am being told that the air port flange delete is a design change and that is now how they are made...."

INCONCEIVABLE!

Seriously ready to go back to stock and hope that Redesign is better.

BTW, Best price I can find on stock kits is about $90 per side now.
Enter, another day wasted on what shouldn't be an issue!
 

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OCD Solutions said:
Manifold kits arrived last night.

This is the passenger side kit that was $65.67.

FYI, the box says made in Korea and is dated 2023/08/29.

bcdbc639a2a7c424e11600edea256281.jpg
Click to expand...
any updates?
 
Snow White said:
Well I gotta chime in now on options as I am at the end of mine.
I had one stock manifold replaced while under warranty. Out of warranty the drivers side cracked in the same place as everyone else's.
So I did all the research and went with the AFE purchased from American Truck since I'm in CA.
Only lasted about 7k and welds started cracking.
While A.T. was Useless after 30 days AFE sent out replacements right away and this is where my Nightmare has begun!
They told me that they did a redesign to "IMPROVE" them so I was excited to recieve the New and Improved ones.
Immediately I saw how warped and cupped the new base plates were but didn't have too many options so I decided to Try and see if the would torque out since a pair of camps on a bench seemed to work.
Well after all the work and Finally getting those hard to reach bolts in...
I notice they left the Air Port Flange off! See pics.

I put the old one one cause I can't go without a vehicle and contacted them.

Their Response was
"I am being told that the air port flange delete is a design change and that is now how they are made...."

INCONCEIVABLE!

Seriously ready to go back to stock and hope that Redesign is better.

BTW, Best price I can find on stock kits is about $90 per side now.
Enter, another day wasted on what shouldn't be an issue!
Click to expand...
American truck screwed me over bad on a refund for parts not delivered. I will never buy a thing from them ever again.
 
Philth said:
Have you looked into the AFE Twisted Steel shorties? I have not heard of those failing/cracking.
Click to expand...
Don't get them. They crack. I went through two sets. 2nd set replaced under warranty. I'm currently waiting for them to refund me my money. They also don't machine them after welding. I had to face them so that the flange was flat.
 
Kellysed said:
Don't get them. They crack. I went through two sets. 2nd set replaced under warranty. I'm currently waiting for them to refund me my money. They also don't machine them after welding. I had to face them so that the flange was flat.
Click to expand...
Unless the flange itself was warped, most headers leave a weld bead around the ports. It helps with sealing on the gaskets. Get quality gaskets, like Remflex, and they will seal any minor inconsistencies in the port sealing areas
 
HSKR R/T said:
Unless the flange itself was warped, most headers leave a weld bead around the ports. It helps with sealing on the gaskets. Get quality gaskets, like Remflex, and they will seal any minor inconsistencies in the port sealing areas
Click to expand...
The flange was warped and they don't weld on the gasket/port side of the flange. They are welded on the outside.
 
Here's my opinion about shorty headers. Just stay away from them. From all the research I did, it appears that they all crack. I think that there is too much expansion and contraction in the tubes during the temperature cycles and since the tubes are so short, they have no room to flex. They just end up cracking. If you want headers, get a set of long tubes and a new downtube/Y pipe with cats. It will cost you significantly more, but that's the correct header option. For the low budget option, get the BD Diesel manifolds. They currently only have them available for the DS/Classic RAMs but will supposedly have them available for the newer DT RAMs late summer/early fall. $250.00 for a set. If you are going to install factory manifolds, use longer bolts with the spacer sleeve like BD Diesel does. Hopefully this will keep the bolts from breaking and if they do break, they should break beyond the head so that you wont have to extract any of them out. Search Results.
 
Philth said:
Have you looked into the AFE Twisted Steel shorties? I have not heard of those failing/cracking.
Click to expand...
AFE headers warp and crack, dealing with it now. Saw a guy on YouTube with a solution. He cut 4 slits on the header plate and said it solved the warping issue. Mine were warped so bad I couldn’t even get a seal with remflex gaskets.
 

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I've been waiting 6+ months for warranty replacement of my passenger side. No parts available since forever. This is my third cracked stud/manifold - I'm at 130,000 miles and it happened at least 10k miles ago. I'm just going to do it myself at this point. The time and money seems worth it after all the wasted time and frustration dealing with my local Ram dealer.

I just ordered the full BD kit p/n # 1041467 from BD directly. Now I just have to deal with the broken stud extraction...
 
fenix501 said:
I've been waiting 6+ months for warranty replacement of my passenger side. No parts available since forever. This is my third cracked stud/manifold - I'm at 130,000 miles and it happened at least 10k miles ago. I'm just going to do it myself at this point. The time and money seems worth it after all the wasted time and frustration dealing with my local Ram dealer.

I just ordered the full BD kit p/n # 1041467 from BD directly. Now I just have to deal with the broken stud extraction...
Click to expand...
Seems replacement manifold availability varies by region. There are people who can get them next day, and some that wait weeks or months.
 
HSKR R/T said:
Seems replacement manifold availability varies by region. There are people who can get them next day, and some that wait weeks or months.
Click to expand...
Just added one for the right side in a shopping cart at one of the mopar parts sites, was available to ship, not that I need one at the moment.
 
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